Adventure Travel - current hotspots, festivals, and newsworthy stories are featured, while all the basics are offered as well, adventuretravel.about.com

Adventure Travel - see travel photos, read journals and reviews, and search for the perfect trip on iexplore.com

Adventure Travel Tips - lists many types of trips: culinary, cycling, hunting, kayaking, etc. and how many offerings for each; it also has links to important travel warning and health warning information as well as maps, adventuretraveltips.com

Destination Himalaya - this company arranges group travel or "tailor-made" travel experiences to India, Tibet, Sri Lanka, Mongolia, and Bhutan--you could hike the foothills of the Himalayas or travel by riverboat in Southern India, destinationhimalaya.net

Adventure Sports Online - this site is a directory with links to all manner of sporting activities and vacations from kayaking to llama treks; it also has an events calendar organized by type of sport and an online marketplace, adventuresports.com

Footloose Adventure Travel - is an organization that will help you choose or customize your ideal trip; they list suggested trips and organized holidays, they will tailor a trip for you, or will make contacts and help you book flights (they have very positive comments from former travelers),footlooseadventure.co.uk

Travel Adventures - gorgeous photographs and personal travel impressions are catalogued on this site--just the thing to get an adventurous person excited about traveling, traveladventures.org

18 Adrenaline Adventures - 4 Frommer's writers create a list (with photos) of action-packed travel adventures for those of you who crave an adrenaline rush: from diving with sharks, entering extreme eating contests and ziplining to rafting on rapids, walking through haunted houses and attending stuntman school!

Gordon's Guide to Adventure & Active Travel -  whatever your heart desires, from a stay on a dude ranch to a white water rafting trip or a safari, this site has numerous links in many categories; unfortunately the ones I checked were rather high end, gordonsguide.com

Passport to Adventure - travel website with PBS travel series hosts Julie Conover & Mark Jennings focuses on where to travel with descriptions, articles, and photographs, passporttoadventure.com